Home / 28,521.92-39,360.12-15,946.76

Finding the Fourth Proportional to 28,521.92, 39,360.12 and 15,946.76

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Solution

The fourth proportional to 28,521.92, 39,360.12 and 15,946.76 is: 22,006.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,521.92 : 39,360.12 = 15,946.76 : x
  2. Step 2: Convert to fraction form
    28,521.92/39,360.12 = 15,946.76/x
  3. Step 3: Cross multiply
    28,521.92x = 39,360.12 × 15,946.76
  4. Step 4: Simplify right side
    28,521.92x = 627,666,387.21
  5. Step 5: Solve for x
    x = 627,666,387.21/28,521.92
  6. Step 6: Final answer
    x = 22,006.46

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.